# STEPPING OR KNEELING ON OBJECT
> MSHA accident `220213500016` · 12/07/2021 · CalPortland Company
## Details
- **Degree of injury:** DAYS AWAY FROM WORK ONLY
- **Classification:** STEPPING OR KNEELING ON OBJECT
- **Accident type:** Struck against stationary object
- **Occupation:** Car trimmer, Car loader, Bin puller, Truck loader
- **Activity:** Walking, Running
- **Injury source:** BROKEN ROCK,COAL,ORE,WSTE
- **Nature of injury:** SPRAIN,STRAIN RUPT DISC
- **Body part:** BACK (MUSCLES/SPINE/S-CORD/TAILBONE)
- **Days lost:** 7
- **Mine experience:** 1.6 years
## Operator
- **Controller:** Taiheiyo Cement Corp
- **Operator:** CalPortland Company
- **Mine:** [4503687](https://api.ai-analytics.org/mine/4503687)
## Narrative

A miner was walking when the miner stepped on a rock and felt a twinge in lower back

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*